What question did this study set out to answer?

To examine how population heterogeneity influences the resistance and germination behavior of aerobic bacterial spores exposed to ethylene oxide.

August 1, 1956Journal of BacteriologyOpen Access

Population Heterogeneity in the Resistance of Aerobic Spores to Ethylene Oxide

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Authors

BCBrooks D. ChurchGaertner (United States)HHHarlyn O. HalvorsonNorthern Illinois University DRDavid S. L. RamseyArthur Rylah Institute for Environmental Research

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Implication

Laboratory study reveals population heterogeneity and variable germination dynamics in ethylene oxide-treated Bacillus spores, indicating standard assays miss critical dormancy differences.

Key Points

To examine how population heterogeneity influences the resistance and germination behavior of aerobic bacterial spores exposed to ethylene oxide.
Cultured and prepared spore stocks across multiple species, including Bacillus cereus, Bacillus polymyxa, Bacillus subtilis var. niger, and Bacillus megaterium.
Evaluated spore survival, viability, and germination responses following ethylene oxide exposure using standard survivor-curve and qualitative end-point techniques.
Standard survivor-curve and end-point measurement techniques fail to distinguish between the inhibitory effects of ethylene oxide on initial spore germination versus post-germination cell development.
Spore populations exhibit substantial internal heterogeneity, leading to pronounced variations in ethylene oxide tolerance and dormancy-breaking patterns.

Cite This Study

Church et al. (1956) studied this question.

synapsesocial.com/papers/6a841d8e84161f555bc52169 https://doi.org/10.1128/jb.72.2.242-247.1956

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Implication

Laboratory study reveals population heterogeneity and variable germination dynamics in ethylene oxide-treated Bacillus spores, indicating standard assays miss critical dormancy differences.

Population Heterogeneity in the Resistance of Aerobic Spores to Ethylene Oxide

Discussion

Member takes

Implication

Key Points

Cite This Study

Population Heterogeneity in the Resistance of Aerobic Spores to Ethylene Oxide

Discussion

Member takes

Implication

Key Points

Cite This Study

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